Provided is a display device, comprising a display screen (1) and a back plate mechanism (2) arranged at a non-display side of the display screen (1); the back plate mechanism (2) comprises a plurality of flat and straight supporting plates (21); any two adjacent flat and straight supporting plates (21) are connected in such a way that an included angle is formed between the flat and straight supporting plates; and the display screen (1) forms a curved-surface structure under the support of the flat and straight supporting plates (21). The display device is a curved-surface display device with a relatively good curvature consistency.